Abstract: An attachment suitable for attaching to standard sized cans of vegetable shortening or the like in which a two-piece clamp attaches to the top rim of the can to lock the clamp member against axial movement. The clamp member is provided with a central opening with a flange bordering one side of the opening and a wiping or cutting lip bordering the other side. A pusher plate fits in the bottom of the can and is supported by a longer, standard can or a push base. A cylinder is fitted over the central opening and locked within the flange against axial movement. A plunger fits in the cylinder. The shortening is dispensed by pushing against the clamping member which moves the can down about the push plate forcing shortening up through the central opening into the cylinder. The plunger moves up until index marks on the plunger indicate the desired amount of shortening has been extruded.